*{
    margin: 0;padding: 0;
    box-sizing: border-box;outline: none;
}
li{
    list-style: none;

}
a{
    text-decoration: none;
}
.clear:after{
    content:"";
    display:block;
    clear:both;
    height:0;
    overflow:hidden;
    visibility:hidden;
}
.clear{
    zoom:1;
}
input,button{
    outline: 0;
    border: 0;
    background: transparent;
}